Molar Mass of Na2SiO3 (Sodium Metasilicate)

Molar Mass Calculator

What is the molar mass of Na₂SiO₃?

Answer

M(Na₂SiO₃) =

122.062 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Nasodium	2	22.990	45.980 w ≈ 37.67%	≈ 37.67%
Sisilicon	1	28.085	28.085 w ≈ 23.01%	≈ 23.01%
Ooxygen	3	15.999	47.997 w ≈ 39.32%	≈ 39.32%
Σ = 122.062 g/mol w = 100%				100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

O 39.32%Na 37.67%

Si 23.01%

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Molar masses of substances nearby

Formula	M, g/mol
C₄H₁₁NO₃ (tromethamine)	121.136
Sr(OH)₂ (strontium hydroxide)	121.63
Sb (antimony)	121.76
Na₂SiO₃ (sodium metasilicate)	122.062
C₆H₅COOH (benzoic acid)	122.123
NaClO₄ (sodium perchlorate)	122.44
KClO₃	122.55

FAQ

What is the molar mass of Na2SiO3?

M(Na₂SiO₃) = 122.062 g/mol

How to calculate the molar mass of Na₂SiO₃?

Add up the atomic weights of all the atoms in the formula: 2 × 22.990 + 28.085 + 3 × 15.999 = 122.062 g/mol.

How many grams are in 2 moles of Na₂SiO₃?

m = n × M = 2 mol × 122.062 g/mol = 244.124 g.

See Also